Plug bypass valves and heat exchangers
US7487826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2005 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Dec 31, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2250/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Bypass valves and heat exchangers employing same are provided where the bypass valves cause the flow through the heat exchangers to be short-circuited under certain temperature conditions. The heat exchangers are formed of stacked plate pairs or tubes having enlarged communicating distal end portions forming inlet and outlet manifolds. The bypass valves can be plugged in where desired between the enlarged distal end portions to produce bypass flow between the inlet and outlet manifolds. The bypass valves include a housing which can be brazed in place during brazing of the heat exchanger. The housing has inlet and outlet openings in communication with the respective inlet and outlet manifolds for bypass flow therebetween. A removable temperature responsive actuator is located in the housing for blocking and unblocking the bypass flow through the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.